Include driver infor into PrinterBasicInfo.

printing/backend/win_helper.cc

Index: printing/backend/win_helper.cc
diff --git a/printing/backend/win_helper.cc b/printing/backend/win_helper.cc
index b163a65ece970a3c25d139d63ef5ebf73acdfb5b..b58592e29f2245368a5b6535e467ac58ed10934e 100644
--- a/printing/backend/win_helper.cc
+++ b/printing/backend/win_helper.cc
@@ -4,7 +4,14 @@
 
 #include "printing/backend/win_helper.h"
 
+#include <algorithm>
+
+#include "base/file_path.h"
+#include "base/file_version_info.h"
 #include "base/logging.h"
+#include "base/utf_string_conversions.h"
+#include "printing/backend/print_backend.h"
+#include "printing/backend/print_backend_consts.h"
 
 namespace {
 typedef HRESULT (WINAPI *PTOpenProviderProc)(PCWSTR printer_name,
@@ -57,6 +64,49 @@ PTMergeAndValidatePrintTicketProc g_merge_and_validate_print_ticket_proc = NULL;
 PTReleaseMemoryProc g_release_memory_proc = NULL;
 PTCloseProviderProc g_close_provider_proc = NULL;
 StartXpsPrintJobProc g_start_xps_print_job_proc = NULL;
+
+// Returns pointer to structure allocated in |buffer|. So pointer is only valide
+// until |buffer| is destroyed.
+const PRINTER_INFO_2* GetPrinterInfo2(HANDLE printer,
+                                      scoped_array<BYTE>* buffer) {
+  DCHECK(printer);
+  DCHECK(buffer);
+  DWORD bytes_needed = 0;
+  const DWORD kLevel = 2;
+  ::GetPrinter(printer, kLevel, NULL, 0, &bytes_needed);
+  if (!bytes_needed)
+    return NULL;
+  buffer->reset(new BYTE[bytes_needed]);
+  if (!buffer->get())
+    return NULL;
+  if (!::GetPrinter(printer, kLevel, buffer->get(), bytes_needed,
+                    &bytes_needed)) {
+    return NULL;
+  }
+  return reinterpret_cast<const PRINTER_INFO_2*>(buffer->get());
+}
+
+// Returns pointer to structure allocated in |buffer|. So pointer is only valide
+// until |buffer| is destroyed.
+const DRIVER_INFO_6* GetDriverInfo6(HANDLE printer,
+                                    scoped_array<BYTE>* buffer) {
+  DCHECK(printer);
+  DCHECK(buffer);
+  DWORD bytes_needed = 0;
+  const DWORD kLevel = 6;
+  ::GetPrinterDriver(printer, NULL, kLevel, NULL, 0, &bytes_needed);
+  if (!bytes_needed)
+    return NULL;
+  buffer->reset(new BYTE[bytes_needed]);
+  if (!buffer->get())
+    return NULL;
+  if (!::GetPrinterDriver(printer, NULL, kLevel, buffer->get(), bytes_needed,
+                          &bytes_needed)) {
+    return NULL;
+  }
+  return reinterpret_cast<const DRIVER_INFO_6*>(buffer->get());
+}
+
 }
 
 namespace printing {
@@ -260,4 +310,66 @@ HRESULT XPSPrintModule::StartXpsPrintJob(
                                     print_ticket_stream);
 }
 
+bool InitBasicPrinterInfo(HANDLE printer, PrinterBasicInfo* printer_info) {
+  DCHECK(printer);
+  DCHECK(printer_info);
+  if (!printer)
+    return false;
+
+  scoped_array<BYTE> printer_info_buffer;
+  const PRINTER_INFO_2* info2 = GetPrinterInfo2(printer, &printer_info_buffer);
+
+  if (!info2)
+    return false;
+  printer_info->printer_name = WideToUTF8(info2->pPrinterName);
+  if (info2->pComment)
+    printer_info->printer_description =
+        WideToUTF8(info2->pComment);
+  if (info2->pLocation)
+    printer_info->options[kLocationTagName] =
+        WideToUTF8(info2->pLocation);
+  if (info2->pDriverName)
+    printer_info->options[kDriverNameTagName] =
+        WideToUTF8(info2->pDriverName);
+  printer_info->printer_status = info2->Status;
+
+  std::string driver_info = GetDriverInfo(printer);
+  if (!driver_info.empty())
+    printer_info->options[kDriverInfoTagName] = driver_info;
+  return true;
+}
+
+std::string GetDriverInfo(HANDLE printer) {
+  DCHECK(printer);
+  std::string driver_info;
+
+  if (!printer)
+    return driver_info;
+
+  scoped_array<BYTE> driver_info_buffer;
+  const DRIVER_INFO_6* driver = GetDriverInfo6(printer, &driver_info_buffer);
+  if (!driver)
+    return driver_info;
+
+  std::string info[4];
+  if (driver->pName)
+    info[0] = WideToUTF8(driver->pName);
+
+  if (driver->pDriverPath) {
+    scoped_ptr<FileVersionInfo> version_info(
+        FileVersionInfo::CreateFileVersionInfo(
+            FilePath(driver->pDriverPath)));
+    info[1] = WideToUTF8(version_info->file_version());
+    info[2] = WideToUTF8(version_info->product_name());
+    info[3] = WideToUTF8(version_info->product_version());
+  }
+
+  for (size_t i = 0; i < arraysize(info); ++i) {
+    std::replace(info[i].begin(), info[i].end(), ';', ',');
+    driver_info.append(info[i]);
+    driver_info.append(";");
+  }
+  return driver_info;
+}
+
 }  // namespace printing